By Baek Byung-yeulSamsung SDI has developed a new system that can store larger amounts of energy, the battery business arm of Samsung Group said Thursday.The firm showcased the product, the E3, at the Electrical Energy Storage Europe 2019 exhibition in Munich, Germany. The three-day event, which runs through Friday, is Europe's largest energy storage system exhibition, featuring more than 1,100 firms in the industry.The E3 has 20 percent improved energy density storage compared to previous models, the firm said. As it can supply electric power whenever necessary it will be used in renewable energy systems.The firm is targeting commercial markets in Europe as the E3 can be used to supplement uneven energy production of from solar and wind power, and store off-peak electricity for peak hours at commercial energy storage facilities.Samsung SDI said it improved the energy density thanks to its new high energy density cell technology."Samsung SDI improved the E3's energy density through use of new internal materials without changing the size of embedded battery cells. The design of the rack and module were also optimized to enhance energy density further while maintaining size," the firm said.The company plans to expand its market share in the growing energy storage system market with the E3."We are constantly upgrading our products based on technology," said Kim Jeong-wook, executive vice president and head of the strategic marketing office of the firm "We will take the lead with improved energy storage systems."